Well, the dirty deed is done, the diagnosis and report is well underway.
Initial findings:
80 degree today, somewhat overcast, light traffic. I cut the seal on my 13 Lb radiator cap and am running zero pressure. I left the surge tank about an inch low from the top AFTER the engine had reached full operating temp. I was very careful to "burp" the system for any air pockets. I KNOW this system and exactly what it takes to do MINE.
There is no change in engine or
oil temps, I'm shocked, still waiting for the other shoe to drop, this don't feel right for some reason....
Around town in light traffic, stop lights and such, no change, it runs between 95 and 100 C, the fan kicks on occasionally (in auto mode). The
oil temp is unchanged.
On the freeway, 70 mph cruise speed. No change, water or
oil temp. I'm still scratching my head, I was SURE there would be SOME change (hotter), which I was OK with.
Now it IS a nice cool day, so that may be a BIG factor. I DID make more than a few hard runs, shift points at 6,000 rpm, I showed the car no mercy, never ran the fan in manual.
Next up: A good run on a race track OR I know a couple of canyon roads I like to run in third gear at sustained medium to high rpm. Secondarily, a good hot summer day (may have to wait until next year).
This stuff sure has an oily feel to it. I'm sold on Evans, done, I'm going to run it in everything I have, from my diesel truck to my motorcycle's.
I WILL run a pressure cap, 7 or 8 lbs or less if I can find one. I noticed that some coolant was pushed out of the surge tank into the overflow tank immediately after a high rpm hard run, followed by a quick stop and check. Surprsingly, the coolant was sucked back into the engine very quickly after shut down. I cut the BOTTOM seal on the radiator cap, not the top one. I suspect the high flow water pump generates enough "pressure" by itself to "blow" water out of the system, thus the need for at least a moderate pressure cap (I guess, still working on that idea).
It's WINTER a comin'. You guys going to flush and add/renew
antifreeze this year? Cut to the chase, run WATER, or run EVAN's.
Antifreeze is way old school, that stuff is history.